Troubleshooting
C9 Engines for Caterpillar Built Machines
Media Number -RENR5089-31 Publication Date -01/11/2014 Date Updated -06/11/2014


i02424806

CID 0190 FMI 08 Engine Speed signal abnormal

SMCS - 1439-038-VF ; 1907-038
MID 036 PID 0190 FMI 08
Conditions Which Generate This Code:

The Electronic Control Module (ECM) receives erratic data from the engine speed/timing sensor.

System Response:

The ECM will log the diagnostic code. The check engine lamp will illuminate after a delay. The ECM will default to the signal from the secondary engine speed/timing sensor.

Possible Performance Effect:

There are no performance effects.
Note: If the signals from both engine speed/timing sensors are lost, then the engine will shut down.

Troubleshooting:

Test Step 1. Perform the following diagnostic procedure: "Engine Speed/Timing Sensor Circuit - Test"

Results:

OK - STOP